Huawei FusionModule2000 Maintenance Manual page 44

FusionModule2000 Smart Modular Data Center
Maintenance Guide (Fusion Module Actuator)
Item
Oxidation of
metal
components in
the PDF or NMW
Table 3-9 Semiannual maintenance for the cooling system
Item
T/H sensor
Evaporator
appearance
Welding joint and
needle valve
leakage
Issue 01 (2020-12-25)
Method
Visual inspection
Method
Use a precision
T/H sensor to
calibrate the T/H
sensors inside and
outside the
cabinet.
Visual inspection
Check that
welding points
and needle valves
do not leak using
soapy water or
check that they
are free from oil
stains.
Copyright © Huawei Technologies Co., Ltd.
3 Routine Maintenance
Expected Result
No metal
component is
rusty.
Expected Result
The temperature
deviation is less
than 1°C, and the
humidity
deviation is less
than 5%.
The evaporator
fins are not
pushed down.
Use soapy water
to check whether
welding points
and needle valves
leak.
Troubleshooting
● If any metal
component
experiences
severe
oxidation,
remove the
rust or replace
the component
in a timely
manner.
● If the
component
was painted
before, repaint
it after
removing the
rust.
Troubleshooting
If the temperature
deviation is
greater than 1°C
or humidity
deviation is
greater than 5%,
the T/H sensor
must be
calibrated or
replaced.
Use a fin brush to
organize the fins
that are pushed
down.
If leaking points
are found, retrieve
the refrigerant
and weld the
leaking points
again. Contact
Huawei technical
support.
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